Adjustable concrete insert



P. N. JosLlN v 1,922,479

ADJUSTABLE CONCRETE INSERT Filed July 10, 1929 2 Sheets-Sheet 1 Aug. l5, 1933.

Aug. l15, 1933.

P. N. JosLlN 1,922,479

ADJUSTABLE CONCRETE INSERT Filed July 10, 1929 2 Sheets-Sheet 2 Z9 9' i- J3 @la Q l 30 30 50 V y 27 Z9 2 l 52 J4 wx 32 Y. 5 57' Z y 25 W/////////// Patented Aug. 15, 1933 Unirse STATES -enrsnroreica My invention relates to an adjustable concrete insert.

The primary object of the invention is to provide a simple and economical concrete insert adapted to be embedded in a concrete wall or ceiling for the purpose of supporting or suspending shelf angles, brackets, hangers, or the like; to provide novel means to secure the device in the proper position on a mold form while the concrete is being poured and is setting, which means can be easily removed without leaving the nails project; and which provides for adjustment of bolts used for attaching the objects to be supported.

Other objects and advantages will be apparent as the description proceeds.

In the accompanying drawings:-

Fig. 1 is a longitudinal sectional View of a concrete insert constructed in accordance with the invention together with the attaching means for securing the same to a mold form, the same being taken on the section line 1-"1 of Figure 2.

Fig. 2 is a sectional View taken on the Sectio line 2-2 of Figure l. Fig. 3 is a sectional View taken on the section line 3-3 of Figure 4 and showing the mold form removed and the anchoring means for objects in position. v

Fig. 4 is a sectional View taken on the section line 4 4 of Figure 3.

Fig. 5 is a side elevation of the insert.

Fig. 6 is a bottom View.

Fig. 7 is a plan View with a part broken away.

Fig. 8 is a perspective View ofthe insert anchoring means. v

Fig. 9 is a longitudinal sectional view of another form of concrete insert together with attaching means or securing the same to a mold form, taken on the line 9-9 of Figure 10. Y

Fig. 10 is a sectional View taken on the line 10-10 of Figure 9.

Fig. 11 is a sectional View taken on the line 11-11 of Figure 12, and showing the mold form removed and the anchoring means for objects in position.

Fig. 12 is a sectional view taken on the line 12--12 of Figure 11.

Fig. 13 is a side elevation of theinsert.

Fig. 14 is a bottom View thereof.

Fig. 15 is a plan View.

Fig. 16 is a perspective View of a protecting or covering plate used with the device and constituting a part thereof.

Referring to the drawings in detail, the insert is designated generally at 9 and consists of a cuplikey member of elongated form representing a frustoaconical wall with flattened rIhe ends l0 are inclined in opposite directions and the sides 11 are dat and parallel.

r'Ihe top edge or open side ci the body of the 60 Y insert is flanged over as indicated at l2 so as to provide retaining :for the insert when embedded in the concrete designated at 13. ./-l plate 14 is secured in the concavity of the insert as by punching out shoulders 15 from the inner sur- 65 face thereof. The plate 14 may be snapped over these shoulders by reason of its being of sheet metal.

In order to secure the device to a mold form designated at 16, a fastening means shown in Figures 1 and 8 is provided consisting of a resilient metal strip 17 with openings 18 ior receiving nails to attach the same to foi-rn. One end of the strip has a tongue 19 which is curved outwardly and then inwardly and inaliy outwardly at its free end to form a retaining meinber under which the edge of the insert at one end of an opening or elongated slot 2G provided in the flat bottom thereof is engaged. The other end of the strip is iirst bent inwardly and then outwardly and nally inwardly, as indicated at 21, so that the opposite edge of the slot will ride over the same and be frictionally held by the resiliency of the tongues detachably to the form 16, as more particularly shown in Figure 1 of the'drawings. i

The concrete is then poured while the insert is thus retained in position as shown in Figures 1 and 2. The plate 14 prevents the concrete from entering into the space between it and the reduced bottom portion of the insert which is Y provided with the elongated opening or slot 20. The form is then removed as shown in Figures 3 and 4 without leaving any projecting nails or fastenings, simply by releasing the frictional engagement of the insert with the tongues i9 and 21. A nut 22, which is slidably mounted between the bottom wall oi the insert and the plate 14 before the latter is inserted in position, then serves to take a bolt or the vlike 23 by which suitable objects to be supported, may be attached.

In the form of the invention shown in Figures 9 to 16, inclusive, the body of the insert substantially of the same form as previously described in connection with Figures l to 8, inclusive, except thatin this form the insert generally designated at 24 consists of a cup-like member oi elongated form, generaliy rectangular in outline. In other words, the end walls 25 are inclined in opposite directions, but inico ics

llO

stead of being.' curved are iivat, and have stepped portions 26 forming shoulders, each'provided withan aperture 27 for receiving nails or. other are given the same numbers for thesa.

fasteni-ng, means -28 by Whic the .insert maybe attached to the mold form. The mold form' other parts corresponding `to thefatherF ofl theinsert, and the top thereof is provided withA aA surrounding ange 30 projecting outwardly, the end portions thereof having `apertures 31 receiving nails or other fastening devices 32 as an additional means for anchoring the insert to the boards of the mold form in any desired position. This flange, as well as the tapering formation of the stepped portions `producing the shoulders 26 which extend entirely across the width of the device, serves as an efficient anchoring means to retain the insert in the concrete when embodied therein so as to prevent displacement under heavy loads or strains.

A box-like structure o r plate 33 is secured in the concavity of the insert, as by punching out, shoulders 34 from the inner faces or sides thereof and also the ends if desired. It should be noted that this plate forms a protective covering to prevent the concrete from owing into the concavity at the smallportion thereof and is produced from a sheet metal blank bent to form side and end walls 35 and 36, respectively. The sides have outturned flanges 37 engaging the sides of the insert and forming shoulders with the bottom 38 of the insert, while the receptaclelike portion is adapted to accommodate the end of a bolt 39 so that the latter may be adjusted and have considerable clearance therein when engagedwith a nut l0 placed between the plate and particularly the flanges 37 thereof and the bottom of the insert prior to securing the retaining plate in position. The bottom is slotted, as indicated at 41, so as to permit adjustment of the bolt or other suspension means Within a range generally suflicient for all purposes, according to the element or object to be hung or supported. As the nut ts snugly in position, it is held from turning, thus facilitating the engagement of the bolt therewith.

In the use of this device, the concrete is poured, while the insert is secured to the mold form as in the form previously described, and the flat or box-like structure 33 prevents the concrete from entering into the space between it and the reduced bottom portion of the insert which is provided with the elongated slot 41. is then removed, as shown in Figures 11 and 12, without leavingl any projections, nails orr other fastenings, since the nails 31 and 32 may be cut olf. The device is used for the purposes common to, inserts of this character, as already explained. It will also be apparent that the fastening device for securing the insert to the mold The form.

g'ures l, 2 and 8, may be lh this form of the device instead of I x ils 28 and 32.

Th device may be embedded in a concrete wall form," asshownfirj. i

d Y"i'ofceiling for the purpose of supporting or suspending shelf angles, brackets, hangers for machinery, or the like, and, owing to its construction, will give maximum resistance to being pulled out of position. On the other hand, .rit may be very economically manufactured and may be stamped out of heavy sheet metal Vor cast.

Thus, for example, in the embodiment shown in Figures 9 to 16 inclusive, both the insert 24 and the plate 33 may have curved rather than squared ends, and the step-like portions of the insert 24 may also be curved rather than angular. as shown. Y

While 1'. have shown and described my invention in a preferred form, I am aware that various modifications and changes may be made therein without departing from the principles of the invention, the scope of which may be determined by reference to the appended claims.

I claim as my invention:

1. The combination with a concrete insert including a dish-like member with attened sides and a retaining flange; of a plate mounted in the member spaced from the bottom thereof, said bottom having slot therein, and means to detachably secure the device to a inold form including a resilient strip having means for securing it to the form and having oppositely curved resilient tongues bent up therefrom to resiliently and detachably engage the edges of the wall at the ends of the slot to secure the insert in position duringthe pouring and setting of the concrete adapted to be disengaged t erefrom. 2. The combination with an insert having a-v retaining wall, a slot in the bottom thereof and a'wall over said slot providing a hollow chamber for receiving an anchoring means, of means for detachably securing the insert to a form1 including an elongated resilient strip havingopenings for receiving nails to anchor the same to the form and having end tongues bent therefrom with oppositely curved free ends resiliently and detachably engaging the end walls of the;

of, said bottom having a slot, a nut or bolt headl being adapted to be held in the space of the cupshaped member between the plate and the bottom and the ends of the cup-shaped memberhaving stepped portions provided with apertures` for receiving fastening means to temporarily anchor the device to a mold form.

PLINY N. JOSLIN.. 

